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　　Blocky machinable material is a kind of material that cooperates with the development of model on CNC computer. This material has excellent and rapid processing property. During CNC machining, no cutting fluid is required and the tool loss is low. The dimensional stability and linear expansion coefficient of this material are extremely stable, and it can be nailed, planed, colored and glued. When the machine is over cut, it can be quickly repaired on the machine, and then cut, until it is modified to a satisfactory model. Therefore, it is widely used in the initial development stage of precision molds, the development of reference molds, and automobile inspection tools. At present, it is widely used in the development of precision molds in the electronics industry, toy industry, automobile industry, home appliance industry, aviation industry and so on.